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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280AI
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<blockquote data-quote="CCAguns" data-source="post: 3055917" data-attributes="member: 15399"><p>Yep, makes perfect sense. IMR 4831 can get me to 2930fps with 59gr, but groups open up slightly. Not sure the shortened barrel (recrowned some years ago) affects more than velocity. H4831 may be a tad slow for 280AI, as I get only around 2700fps with 59gr with Peterson cases. Back in 1990, using R-P cases, had slight primer leak at 61.5gr so I backed off. But I was using different cases back then. 19 at 2830 is very accurate, but not bughole.</p></blockquote><p></p>
[QUOTE="CCAguns, post: 3055917, member: 15399"] Yep, makes perfect sense. IMR 4831 can get me to 2930fps with 59gr, but groups open up slightly. Not sure the shortened barrel (recrowned some years ago) affects more than velocity. H4831 may be a tad slow for 280AI, as I get only around 2700fps with 59gr with Peterson cases. Back in 1990, using R-P cases, had slight primer leak at 61.5gr so I backed off. But I was using different cases back then. 19 at 2830 is very accurate, but not bughole. [/QUOTE]
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